Antijouncing appliance.



No. 837,855. PATENTED DEC. 4, 1906. F. A. LAW.

ANTIJOUNOING APPLIANCE.

APPLICATION FILED 0012s, 1905.

2 SHEETS-SHEET 1.

No. 837,855. I I PATENTED DEC. 4, 1906.

F. A. LAW..

' ANTIJOUNOING APPLIANCE.

APPLIOATION FILED 00123. 1905.

2 SHEETS-SHEET 2.

' and bodies of vehicles, and to this end the in-.

, sionedby the severe vibration which is imthe employment of an appliance embodying sioned by a vehicle traveling over rough vehicle-body.

.which will more readily appear as the nature same consists in the novel construction, com- UNITED STATES PATENT oFFIoE.

A. LAW, OF HARTFORD. CONNECTlCUT;

ANTIJOUNC ING APPLIANCE.

Specification of Letters Patent.

Patented Dec. 4, 1906.

Application filed October 23, 1905. Serial No. 283,988.

To all whom it may concern:

Be it known that I, FRED A. LAW, a citizen of the United States of America, residing at Hartford, in the county .of Hartford and State of Connecticut, have invented new and useful Improvements in Antijouncing Appliances, of which the following is a specification.

This invention relates to that type of appliances or devices designed to absorb and neutralize the shock of opposing forces, especially in connection with the running-gear vention has view a novel and practical construction of antijouncing appliance for vehicles.

The invention possesses s ecial utility in connection with motor-vehic es which while in rapid motion upon rough roads subject the occupants to a severe jouncing, occaparted to the body of the vehicle throu h the action of the supporting-springs for the Theviolent up-and-down jolting motion under the conditions above referred to is not only a very disagreeable and objectionable feature of automobiling, but also subjects the vehicle and motor to abnormal shocks, jars, and strains, which seriously affect the durability and stability of the machine.

It is the purpose of the present invention to entirely obviate these objections through simple and thoroughly effective means for absorbing and cushioning the shocks and jars incident to the quick spring action occaroads and: at high speed. 7

With these and other. objects in view,

of the invention is better understood, the

bination, and arrangement of parts hereinafter'more fully described, illustrated, and claimed.

In the accompanying drawings, Figure 1 is a side view of an antijouncing appliance constructed in accordance with the present invention and shown applied to a vehicle .of the motor type. Fig. 2 is an enlarged plan view, partly in section, of the appliance, the line of section being indicated bythe line 2 2 in Fig. 3. Fig. 3 is an enlarged detail view of the complete appliance or device disconcross-sectional view on the line 4 4 of Fig. 3,

showing one form of buffer device for the apshowing a modified construction. Fig. 6 is a crosssectional view on the line 6 6 of Fig.

5. Fig. 7 is a view similar to Fig. 3, showing in elevation a modified form of appliance illustrated in Figs.,5 and 6.

Like references designate corresponding parts in the several figures of the drawings.

In carrying out the present invention the antijouncing appliance essentially comprises in its general organization three principal elements-namely, a fulcrum-bar 1, a checking-lever 2, and a bufler device 3, operatively related to the said bar and lever and affording what maybe termed a braking connection between the said elements, whereby the checking-lever will receive and effectually check the jars and vibrations incident to the up-and-down vibrations of the vehicle-bod i The crum-bar 1 referably consists of a straight flat-bar designed to be pivotally supported at one end upon a fixed oint of adjustment on the running-gear of t e vehi-" cle. Usually this is accomplished by employing an axle-clip 4, bolted fast to the axle A of the vehicle and provided 'with an offstanding bifurcated hanger-ear 5, in which is pivotally supported or-mounted one end of the fulcrum-bar by means of a pivot pin or bolt 6. The opposite vertically-swinging end of the fulcrum-b ar is pivotally connected by-means of the pivot pin or bolt 7 to the verticall -swinging check-lever 2. In its preferablb construction this checking-lever is in the form of a bell-crank consisting of the long and short arms L and S,- respectively, and the'short arm and angle portion of the said lever is usually bifurcated to receive the swinging end of the fulcrum-bar 1 and to maintain a properly-centered relation. there to. The pivotal connection 7. between the fulcrumba r and the checking-lever 2 is located at the angle of the 'latter and constitutes a shifting or moving fulcrum for thesame.

As indicated, the distinctive feature of the invention resides in providing a braking-connection between the checking-lever and its swinging fulcrum 1. This braking connection preferably consists of a buffer device comprising means for absorbin and cushioning the jars and jolts to whic 1 the vehiclebody maybe subjected. Various types of pliance. Fig. 5 is a view similar to Fig. 2,

bufier devices may be utilized for these purvided at their up er and lower edges with the inturnedeguardanges 9,projecting over the top and bottomedges ofthe fulcrum-bar to guide the shoes and hold the same against vertical displacement. The sliding shoes are 1 properly retained in place and also adjusted through the medium of a clam bolt 10, connecting the opposite shoes an working in a guiding-slot 11, formed longitudinally in the fulcrum-bar. The active part of the buffer device referred to consists of friction-washers 12, interposed between the sliding shoes and the adjacent sides of the fulcrum-bar. Coupling-links 13 ivotally connect the opposite shoes 8 with t e short arm S of the lever 2.

From the adjustment of the bolt 10 any desired amount of friction may be p ovided for in the bufier and also wear proper y compensated for.

As exemplifying the range of modification thatmay be resorted to there is shown in Figs. 5 to 7, inclusive, a buffer device 3, which consists of a helical spring arranged about the fulcrum-bar and having a connection at one end with the coupling-links 13 and at its other end with the opposite sup portin -arms 14 of a holding-bracket 15,,

forme rigidly with or upon the fulcrum-bar 1. Holding eyes or sleeves 16 are pivotally fitted to the arms 14 and to the links 13 to provide for properly receiving the, holding-v spring 3.

In either form of the invention described it will be obvious that the bufier device will absorb and cushion the vibration or jar of the vehicle-body B, inasmuch as the checking-' 1. An anti'ouncer for vehicles comprising a swinging fuicrum having a fixed point of attachment upon the running-gear of the vehicle and in the horizontal plane of the running-gear, a checking-lever pivotally connected with the vehice-body, and a buffer device-arranged'to constitute a coupling connection between the fulcrum and the checking-l'ever.

2. An antijouncer for vehicles comprising a fulcrum-bar having a fixed pivotal su port at one end, a vertically-swinging chec 'nglever pivotally mounted upon the opposite end of the fulcrum-bar and also,connected with the vehicle-body, and a buffer device embracing the fulcrum-bar and connected-to the checking-lever, as described.

' 3. An antijouncer for vehicles, comprising a swinging fulcrum-bar having a fixed pivotal support at one end, a bell-crank checking-lever connected at one endwith the vehicle-body and at its angle to the fulcrumbar, and a buffer device com rising a member mounted upon the fulcrumar and pivotally coupled to the short arm of said lever.

4. An antijouncer for vehicles, comprising a fulcrum-bar having a fixed ptiivptal support at one end, a bell-crank chec -lever connected at one end with the vehic e-body and at its other end to the fulcrum-bar, a buffer device com risin sliding. shoes disposed at opposite si es of t efulcrum-bar andfrictionwashers between said shoes and the bar, and

link connections between said shoes and the short arm of the checking-lever.

5. An antijouncer for vehicles comprising a fulcrum-bar having a fixed ivotal support at one end, a bell-crank checliin -lever con- ,nected at one end with the vehic e-body and at its other end to the fulcrum-bar, a buffer device corn rising slidin shoes disposed at opposite si es of the fu rum-bar and frictlon-washers'between said shoes and the bar, and link connections between said shoes and the short arm of the checking-lever, and means for retaining the sliding shoes on the fulcrum-bar and also for re latin the amount of friction between the Tiiifier evice and the fulcrum-bar.

FRED A. LAW. Witnesses:

H. A. CHAPIN, K. I. CLEMoNs. 

